Attachment for fast-warp knitting-machines.



W. J. WEEPERr ATTACHMENT FOR FAST WARP KNITTING MACHINES,

APPLICATION FILED DEC. I2. 1911.

1,297,424. Patented Mar. 18, 19191 2 SHEETS-SHEET I.

WITN ESSES VWWW ATTOR N EY W. J. WEEPER.

ATTMIHMENT FOR FAST WARP KNITTING MACHINES.

APPLICATION FILED 05012. i917.

LQQZQQ. Patented Mar. 18,1919

2 SHEETS-SHEET 2.

ATTORNEY WILLIAM J'. WEEPER, OF FONDA, NEW YORK.

ATTACHMENT FQR FAST-WARP KNITTING-MACHINES.

Specification of Letters Patent.

Patented Mar. 1c, 1919.

Application filed December 12, 1917. Serial N 0. 206,767.

T 0 all whom it may concern:

Be it known that I, WILLIAM J. WEEPER, a citizen of the United States, residing at Fonda, in the county of Montgomery and State of New York, have invented a new and useful Attachment for Fast-Warp Knitting-Machines, of which the following is a specification.

This invention has reference .to knitting machines of the kind used in makin silk and cotton jersey cloth for gloves, and also, making silk and cotton nets, and which may be used for making cotton atlas cloth afterward finished to imitate chamois and then called chamoisette.

Such knitting machines are known, in the practical art, by various names, such as fast warp, tricot, traverse warp, and flat bar knitting machines.

In machines used for the purposes named, difficulty has been found in properly designing the pattern wheels, because,as heretofore made, the pattern arm is raised and lowered from the pattern wheel in such a manner that there is either a lead or a lag between the pattern wheel and the part engaged thereby through which motion is transmitted to the pattern arm through the customary connections.

In accordance with the invention, push rods are employed having a path of reciprocation always radial to the pattern wheels, and the pattern arms are so made that the radial movement of the push rods is properly transmitted to the parts to be actuated thereby. v

The invention will be best understood from a consideration of the following de tailed description, taken in connection with the accompanying drawings forming part of this specification, with the further understanding that, while the drawings show a practical form of the invention, the latter is not confined to any strict conformity with the showing of the drawings but may be changed and modified so long as such changes and modifications come within the scope of the appended claims.

In the drawings:

Figure 1 is a side elevation of the part of the machine containing th pattern wheels, push rods-and pattern arms;

Fig. 2 is a vertical sectionback of the toothed wheel by which the pattern wheels are driven;

Fig. 3 is an end elevation of the structure of Fig. 1 as seen from the right hand side thereof;

Fig. 4 is a section on the line 44 of Fig. 2;

Fig. 5 is a section on the line 5--5 of Fig. 3.

Referring to the drawings, there is shown a portion 1 of the main frame of a knitting machine to which the invention is ap plied. Fast to the frame 1 are brackets 2 in spaced relation one to the other, and these brackets carry a shaft 3 and a rod 4 for purposes which will hereinafter appear. Fast on the shaft 3 is a toothed wheel 5 engaged by a flange (ion 'a flange wheel 7 carried by another shaft 8 receiving motion from a suitable source of power and mounted, on the main frame 1n a manner not shown, since such shaft and flange wheel form no part of the invention. The flange wheel is so'made and related to the toothed wheel 5 that the shaft 3 is rotated step by step. with the steps relatively short. a commercial form of the invention requiring 96 impulses of the wheel 5 to make one revolution thereof and the shaft 3 participating in such movement.

Mounted on the rod 4 are bell crank arms 9, there being two such arms in the showing of the drawings. Connected to one branch 10 of each bell crank arm 9 is a bar 11 which may have an adjustable extension 12 to the back guide bar of the machine, indicated at 12 in Fig. 1. The back guide bar and associated parts are found in the type of knitting machines hercinbefore referred to and which are generally exemplified in the showing of the patent to Payne and Campion for warp knitting machine, patented February 5, 1889, No. 397,140. It is therefore deemed unnecessary to either show or describe the guide bars more in detail.

The connecting rod for the back guide bar may, of course. be otherwise constructed than shown in the drawings, since its function is as the name implies to connect certain parts.

Mounted on and fast to the shaft 3 are pattern wheels 13, these Wheels being in eccentric relation to the axis of rotation of the shaft 3, and are made fast to the shaft so as to rotate therewith.

Secured to one bracket 2 is a guide block 14 in which there is mounted a push rod 15, there being two such push rods in the particular showing of the drawings, one for pattern arm 10 with which it is associated,

even though the pattern wheel where engaged by the roller 16 follows a path eccentric to the shaft 3.

In the usual'construction of knitting ma chines for the purposes hereinbefore set forth, the rollers are fixed to the pattern arms and consequently the rollers where engaging the pattern wheels follow a curved path so that at one position of a pattern arm the roller leads, and at another position lags I with respect to a line radial to the shaft 3.

This makes it difficult to design the pattern wheel to allow for such lead and lag, but the difficulty is entirely overcome by the employement-of push rods moving radially with respect to the axis of rotation of the ecc'entrically mounted pattern wheels, with the result that the output of the machine is perfect with pattern wheels of uniform configuration throughout their circumference.

It will "be understood that .while the pattern wheels are shown in the drawings as of generally circular outline, they may be of other than circular outline.

What is claimed is:

1. In a knitting machine of the type'described, the combination with the guide bars of the machine, of eccentrically arranged pattern wheels, rockable pattern arms connected to the guide bars, and push rods for transmitting motion from the pattern wheels to the pattern arms and mounted to travel in paths radial to the axis of rotation of the pattern wheels. I

2. In a knitting machine of the type doscfibed, the combination with the guide bars of the machine, of eccentrically arranged pattern wheels, rockable bell crank pattern arms connected to the guide bars, push rods fortransmit-ting motion from the pattern wheels to the bell crank pattern arms, and guides for the push rods constraining them to travel in lines radial to the axis of rotation'of the pattern wheels.

3. In a knitting'machine of the ty e described, the combination with the gui e bars of the machine, of eccentrically arranged rotatable pattern wheels, rockable bell crank pattern arms associated with the pattern wheels and connected to the guide bars, and push rods between the pattern wheels and the pattern arms and free from direct connection to either,.said push rods being reciprocable in lines radial to the axis of rotation of the pattern wheels.

4. In a knitting machine of the type described, the combination with the guide bars of the machine, of eccentrically arranged toothed pattern wheels having the teeth equally spaced, rockable bell crank pattern arms associated with the pattern wheels and connected to the guide bars, push rods each at one end engaging a pattern arm and at the other end provided with a roller engaging a attern wheel at the toothed portion thereof, and guides for the push rods constraining them to move in paths radial to the axis of rotation of the pattern wheels.

In testimony that I claimthe foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

WILLIAM J. WEEPER.

Witnesses:

AMELIA LEsNER, A. HOWARD BURTCH. 

